Safety razor



March 5, 1935. 5 TRAQHTENBERG 3 1,993,575 I SAFETY RAZOR Filed .Feb. 14,1933 H 7 INVENTOR SamueiTrdchMiwgf. /944 1, a. W

A TTORNEY.

Patented Mar. 5, 1935 UNITED STATES PTNT OFFICE 1,993,575 SAFETY RAZOR.

Samuel Trachtenberg, Cleveland, Ohio ApplicationFebruary- 14, 1933,Serial No. 656,660

7 10 Claims. (or. 30-12,

This invention relates to razors and particfor purposes presently to bedescribed. The boss ularly to safety razors. More particularly my 3e isalso provided with angularly directed bores invention relates to razorsadapted to hold blades 371, and 370. The former is tapped to receivethehaving a plurality of outtingedges which may threaded portion Za'ofthe handle 2. Both the 5- be used successively to the end that theusefulholes 3h and SE at their lower end converge with 5 ness ofthe'blad'e may be greatly prolonged before the central hole 39. The hole370 is optionally resharpening is required. provided and if used to givegreater security is One of the primary objects of my invention threadedto receive the set screw 6 preferably is to provide a holder or handlefor such blades provided with a knurled head 6a.

10 which is simple in construction, easy and eco- The opposite face ofthe member 3 is provided 10 nomical to manufacture and certain in itsoperapreferably with a rib 3aforming' the edge of thetion. A furtherobject of my invention includes holder 3 on three sides. The other edgeis prothe provision of' a razor blade having means vided with a guard 3bwhich makes one-of the: formed with the blade whereby'the blade itselfedges available for use in shaving. Pins 30 and is securely mounted onthe holder and readily rerectangular bosses 3d are provided also on this15 moved without any danger: of cutting to the face and fit thecorresponding opening in the operator when he removes the blade. Furtherblade as presently to be described. The pins 30 and incidental objectswill appear more fully and'bosses 3d-maybeof any shape and disposedhereinafter. in any orderly manner but are preferably'ar 0 For acomplete conception of my invention ref ranged in the manner shown inFigure 2. erence may be had to the accompanying drawing A blade 5 foruse with this form of holder is and following description and while insaid formed of a piece of steel having a plurality of drawing I haveonly depicted the best mode in cutting edges 5a. Circular andrectangular slots which I have contemplated embodying my in- 50 and 5drespectively are punched in the blade,

vention, corresponding parts and' mechanical as well as a centrallylocated opening 56 into- 25 equivalents are within the scope thereof. Inwhich a piece of tubing of brass or the like is said drawing, fitted andsecured by spot-welding, peening or Figure 1 is a viewpartly inelevation and partly similarmethods. A piston like member l, is slide insectionof a complete razor and: holder emb'odyably fitted within thistubing and its ends are ing my invention; 1 riveted to form retainingflanges ia. For use with 30 Figure 2 illustrates a face View of therazor and the form of device shown in Figures G and 'I'the holder asviewed from the line 2--2 in the direcblade stem 5b is provided with athreaded-portion of the arrows; 7 I tion 5]. t .f

Figure 3 is a transverse section taken as on the In operation thecentral stem 5b of a blade is line 3-3 of Figure 2; inserted in theopening 39 and the slotted por- 35 Figure 4 is a top plan view of amulti-sided tions 50 and 5d receive and encompass the pins 30 blade foruse with my improved holder; and 3d respectively, thus ensuring that theblade Figure 5 is a transverse vertical section of the cannot move onthe member 3 and become insame taken on the line 5-5 of Figure 4;operative. To the pendth'at only oneof the cut- 40 Figure 6 illustratesa view partly in section and ting edges may be accessible the bladeitself fits 40 partly in elevation of a modified form of holder withinthe depressed portion formed by the ribs and blade; and 3a previouslydescribed. In this manner there is Figure 7 is a vertical section takenon the line no danger to the operator of being cut by any 77 of Figure 6showing optional means of of the unused edges of the 1 blade. When thetightening a blade. 7 V members 3 and 5 arethus assembled the handle 45,Referring to the same parts throughout the 2 is screwed tight and therazor is ready for several views by the same reference characters use.If the member 3 is provided with the set I designate a handle by thenumeral 2.' The screw 6 this is additionally tightened till its endhandle 2 is preferably provided with a knurled frictionally engages thestem 5b. 7 I surface 21) and a narrowed threaded portion 2a. I themodified form shown in Figures'fi and 7 50 The threaded handle 2, a flatblade holder 3 a, iJ-shaped member 3:0 is integrally formed with andarazor blade 5-formthe essential components the boss 3. A collar 8slidably mounted inthe' of this invention. The flat holder 3 ispreferably top of the member 3m is internally threaded to provided withan integrally formed boss 36 on receive the tapped portion 5 on the stem51). 55 the one side and has a bored central opening 39 An enlargedknurled flange 8a is provided at one 55 end of the collar while theother end is flanged or riveted as at 8b to prevent the collar fromsliding out when the blade stem is removed. In this manner the blade maybe tightened against the face of the blade holder 3.

Special attention is directed to the shaft 4 which slides freely withinthe sleeve 5b. Shaft 4 and sleeve 5b may have any shape and since thesleeve is an integral part of the blade the shaft 4 provides means forremoving the blade without danger to the operator of being cut. If therazor handle is held ready for use the weight of the shaft 4 causes ittofall downwardly and assume the dotted positions shown in Figures 1, 5,6 and '7 which if placed as shown in full line in these figures theweight of the shaft will cause to slide down. The turned edge 4acontiguous to the blade in its operative position presents nointerference to the full and complete use of the blade, since it issubstantially flush with the face of the blade.

It will be apparent that the construction shown is simple and economicalto manufacture and one in which parts may be eliminated if desired forany reason by those skilled in the art to which my invention relates.Obviously, many modifications of the invention are possible as suggestedby the drawing and specifications and included within the scope of theappended claims.

Having thus described my invention what I claim desire to secure byLetters Patent is:

,1. A safety razor comprising a blade having an opening in its center, asleeve registering with said opening and secured to said blade, and ashaft slidably secured within said sleeve, a guard plate for said bladeand a handle adapted to secure with itself said blade, sleeve and plate.

2. A safety razor comprising a blade having an opening in its center anda sleeve registering with said opening and secured to said blade, and ashaft slidably secured within said sleeve, a guard plate for said bladehaving a boss on one side, a'

centrally located bore and an angularly disposed threaded bore joiningsaid central bore, and a handle threaded at one end adapted to securewith itself said blade, sleeve and plate.

3. Asafety razor comprising a blade having an opening in its center anda sleeve registeringwith said opening and secured to said blade, and ashaft slidably secured within said sleeve, a guard plate having meansfor holding said blade on one side and a boss on the other side, saidboss having a centrally located bore and an angularly disposed threadedbore joining said central bore, and a handle threaded at one end andadapted to secure with itself said blade, sleeve and plate.

4. A safety razor comprising a blade having slotsand a plurality ofcutting edges, an opening in its center, a sleeve registering with saidopening and integrally secured to said blade and a shaft slidablysecured within said sleeve, a guard plate for said blade having, teethon one edge, a raised shoulder on the other edges, detent pinsregistrable with said slots in one side and a boss on the other side, acentrally located bore and an angularly disposed threaded bore joiningsaid central bore, and a handle threaded at one end and adapted tosecure with itself said blade, sleeve and plate.

5. A safety razor comprising a blade having slots and a plurality ofcutting edges, an opening in its center, a sleeve registering with saidopening and integrally secured to said blade, and a shaft slidablysecured within said sleeve, a guard plate for said blade having teeth onone edge, a raised shoulder on the other edges, detent pins registrablewith said slots in one side and a boss on the other side, a centrallylocated bore and angularly disposed threaded bores joining said centralbore, and a handle threaded at one end and adapted to secure with itselfsaid blade, sleeve and plate.

6. A safety razor comprising a blade having slots and a plurality ofcutting edges, an opening in its center, a sleeve registering with saidopening and integrally secured to said blade, and a shaft slidablysecured within said sleeve, a guard plate for said blade having teeth onone edge, a raised shoulder on the other edges and detent pinsregistrable with said slots in one side and a boss on the other side, acentrally located bore and angularly disposed threaded bores joiningsaid central bore, a handle threaded at one end. and adapted to securewith itself said blade, sleeve and plate by engagement with one of saidthreaded bores and a set screw engaging the other.

7. A safety razor comprising a square blade having regularly spacedslots and a plurality of cutting edges, an opening in its center, asleeve registering with said opening and integrally secured to saidblade, and a shaft slidably secured within said sleeve, a guard platefor said blade having teeth on one edge, a raised shoulder on the otheredges and detent pins registrable with said slots in any operableposition in one side and a boss on the other side, a centrally locatedbore and angularly disposed threaded bores converging with said centralbore, a handle threaded at one end and adapted to secure with itselfsaid blade, sleeve and plate by engagement with one of said threadedbores and a set screw engaging the other.

8. A safety razor comprising a blade having a plurality of cuttingedges, an opening in its center, a sleeve registering with said openingand integrally secured to said blade, and a shaft slidably securedwithin said sleeve, a guard plate for said blade having detent means inone side and a boss on the other side, a centrally located bore andanangularly disposed threaded bore joining said central bore, and ahandle threaded at one end and adapted to secure with itself said blade,sleeve and plate.

9. A safety razor comprising a blade having an opening, a sleeveregistering with said opening, integrally secured at one end to saidblade and threaded at the other, and a shaft slidably secured withinsaid sleeve, a guard plate for said blade, having a boss on one sidewith a U-shaped bearing formed on its top, a centrally located boretherein and an angularly disposed threaded bore joining said centralbore, a nut rotatively secured within said bearing, axially aligned withsaid central bore and adapted for engaging the threaded end of saidsleeve, and a handle threaded at one end and adapted to secure withitself said blade, sleeve and plate.

10. A razor blade having an opening, and a pin having flanges on itsends slidably but irremovably secured in said opening and longitudinallymovable therein.

SAMUEL TRACHTENBERG.

